Answer:
There is no mixing of oxygen-rich and oxygen-poor blood.
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The right atrium and right ventricle of the human heart pump oxygen-poor blood to the lungs and the left atrium receives oxygen-rich blood. They never mix.
Answer:
No
Explanation:
Carbohydrates are a source of energy for the body to use. DNA is your genetic code, it can't be altered unless through sexually reproduction. Genes are your physical attributes that are gained through the combination of your parents DNA
Answer:
the physical distance between the two genes.
Explanation: